Slab Leak Repair & Tunneling
If you suspect a slab leak, see unexplained water damage, or need help understanding repair and tunneling options, call Will’s Plumbing & Testing Service for an evaluation.
Slab leak and tunneling work involves diagnosis, access planning, utility conditions, pipe condition, code considerations, safety, and your priorities. The right solution is only recommended after the property and conditions are reviewed — so phone is the best first step.
35 years of licensed plumbing experience in the San Antonio area — 33 of them as a licensed Master Plumber and Responsible Master Plumber (RMP).
Possible Slab Leak Warning Signs
- Warm spots on flooring
- Unexplained increases in the water bill
- Damp flooring or mildew smells
- Low water pressure
- The sound of running water when fixtures are off
- Cracking flooring or foundation concerns
- Water around exterior walls or repeated leak symptoms
These signs do not prove a slab leak by themselves, but they are good reasons to request a professional evaluation.
Leak Detection vs. Slab Leak Repair vs. Tunneling
Leak detection helps identify where a leak may be located and which part of the plumbing system is involved. Slab leak repair addresses the failed piping or connection after the leak is evaluated.
Tunneling may be one repair approach when access beneath the foundation is needed, but the correct approach depends on the property, leak location, pipe condition, access, safety, code requirements, and your needs.
Recent Under-Slab Pipe Work in San Antonio
Repair Options We Discuss Carefully
Depending on the situation, slab leak repair may involve targeted pipe repair, rerouting, tunneling, access through flooring, or water line replacement.
The right option depends on the leak location, piping material, property layout, access, safety concerns, cost, disruption, and long-term reliability. No single repair method is right for every slab leak. We review the conditions and explain practical options before any work proceeds.
Tunneling Considerations
Tunneling can allow access to plumbing beneath a slab while limiting disturbance to flooring and interior finishes. Tunneling work must be planned carefully because soil conditions, tunnel length, access, structural considerations, safety, utilities, inspection requirements, and restoration needs all affect the scope.
Tunneling is a significant project and should be evaluated carefully before work begins. You should receive clear expectations about access, scope, schedule, safety, and restoration responsibilities.
If You Suspect an Active Slab Leak
Shut off the water supply if you know where the valve is and it is safe to do so. Do not tear up floors, cut walls, dig, or attempt pipe repairs yourself.
Keep the area clear, document visible damage with photos, and call us for an evaluation. If electrical hazards are present, stay away from the area and call the appropriate emergency service or utility provider.
How We Handle Slab Leak and Tunneling Service
We start by evaluating the leak symptoms, plumbing system, property conditions, and access points. When a slab leak is suspected, our approach may include leak evaluation, locating the affected line or area, reviewing repair options, discussing access requirements, and explaining whether tunneling, rerouting, or another repair approach is appropriate.
Financing for Qualifying Larger Repairs
Financing may be available for qualifying larger repair projects that come out of a slab leak evaluation — such as tunneling, water line repair, rerouting, or major plumbing repairs.
Financing is subject to credit approval. See our financing options for details.
Licensed, Code-Conscious Work
Work is performed by or under the supervision of a Responsible Master Plumber licensed by the Texas State Board of Plumbing Examiners (TSBPE), in accordance with applicable state and local plumbing codes.
We handle slab leak repair and tunneling with licensed experience, careful evaluation, practical recommendations, and attention to safety, access conditions, and code-conscious work.
Slab Leak & Tunneling FAQs
What are signs of a possible slab leak?
Warm spots on floors, unexplained water bills, damp flooring, mildew odors, low water pressure, water around exterior walls, or the sound of running water when fixtures are off. These signs do not confirm a slab leak by themselves, but they justify a professional evaluation.
Does every slab leak require tunneling?
No. Tunneling is only one possible repair approach. The correct method depends on the leak location, pipe condition, access, property layout, safety, code requirements, cost, and long-term practicality.
Can you guarantee same-day slab leak repair or tunneling?
No. Slab leak and tunneling work depends on diagnosis, access, scope, utility conditions, permitting or inspection needs, crew availability, and the current schedule.
What should I do before the plumber arrives?
If it is safe, shut off the water supply to reduce damage. Avoid tearing up floors, cutting walls, digging, or attempting pipe repairs yourself. Keep the area clear and document visible damage with photos.
Is financing available for slab leak or tunneling work?
Financing may be available for qualifying larger repair projects, subject to credit approval. See our financing page for current options.
How do you decide between repair, reroute, and tunneling?
We evaluate leak location, pipe condition, access, safety, code requirements, property layout, disruption, repair cost, and long-term reliability before discussing options with you.
Suspect a Slab Leak?
If you suspect a slab leak, have unexplained water damage, or need help understanding slab leak repair, tunneling, or water line repair options, call Will’s Plumbing & Testing Service to request an evaluation.